Los_Angeles_County_Road_(Public_Works)_Department_Standard_Drawings.pdf

This is a standard plan drawing from the Los Angeles County Department of Public Works, specifically Standard Plan 130-1 for Sidewalk Details at Intersections, approved on 5/31/1992. The technical drawing provides a detailed schematic for three different walk return cases (Case I, Case II, and Case III) at street intersections, with comprehensive dimensional specifications for sidewalk construction.

The drawing includes precise metric and English unit measurements for sidewalk geometries, including minimum radius specifications (300 mm/1" minimum radius), grading requirements (2% slope), and walkway width variations. Key technical details include provisions for curb and gutter placement, transition areas, and specifications for different intersection configurations. A note on the drawing emphasizes that while metric and English dimensions are provided, construction shall use metric values, with English units provided for reference. The standard plan is designed to provide uniform sidewalk construction guidelines for Los Angeles County public works projects.